In the posts that have past, we have displayed microphone briefly, from both theory and working principles. This time we will discuss one type of microphone is the most widely used, namely Dynamic Microphone. Microphone is also often called Electromagnetic microphone by some people. Microphone type is very much sold on the market with a variety of prices depending on the quality and product.Work principle of this microphone is in contrast with the loudspeaker. Therefore, some people use the loudspeaker as a microphone that is used on acoustic guitar. A movable coil in a magnetic field will generate electric signals. This principle is working on this microphone. More details can be seen in the picture. A coil attached to a thin membrane, in such a way as to be positioned in a magnetic field. When the membrane vibrates, the coil will move, because the influence of the magnetic field appears electrical signal. the signal is nothing but the sound of people talking in front of the microphone. One of the nature or character of this type of microphone is less sensitive. Effectively used for low frequency range. Dynamic microphones typically used for live music concerts, the State Ceremony, and other outdoor event.
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